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2 cards from this section. Quick, good the night before a test.
What is 10 modulo 3?
Divide 10 by 3 and find the remainder.
Are 14 and 10 congruent modulo 4?
Calculate the remainder for both when divided by 4.
What is 9 modulo 4?
Think about how many times 4 goes into 9.
True or False: Division in modular arithmetic is straightforward.
Recall the difficulties surrounding modular inverses.
Calculate (29 + 13) mod 10 and explain each step involved.
Think of it as simplifying operations with the modulus before finding the result.
Using the square and multiply method, compute 3^20 mod 5. Show your workings.
Focus on the binary representation of 20 to simplify multiplications.
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